Question

Ejercicio Resuelto 104 del Algebra de Baldor - Numero 14 Descomponer en 2 factores :.

Answer 1

solucion

(x-y)³-(x+y)³ =

[(x-y)-(x+y)] [(x-y)²+(x-y)(x+y)+(x+y)2=

(x-y-x-y)(x²-2xy+y²+x²-y²+x²+2xy+y²)=

(-2y)(3x²+y²)

saludos